<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Title</title>
</head>
<style>
    #div1{
        width: 100px;
        height: 50px;
        background: red;
    }
</style>
<body>
    <div id="div1"></div>
</body>
<script src="https://cdn.bootcdn.net/ajax/libs/jquery/3.6.0/jquery.min.js"></script>
<script src="RAF.js"></script>
</html>